Convert XLSX to CSV

XLSX files are Excel files that use the Office Open XML format, which Microsoft introduced with Excel 2007.

Like XLS files, XLSX files can have multiple sheets, and each sheet can contain multiple rows and columns of data. They offer several advantages over the older XLS format.

Key features of XLSX files include:

• Better compression, resulting in smaller file sizes
• Enhanced security features, including password protection and digital signatures
• Better recovery from file corruption
• Support for more rows (1,048,576) and columns (16,384) per sheet
• Works with a wide range of applications and programming languages

XLSX files are based on XML and ZIP technologies, making them easier for third-party software to read and write.

CSV (Comma-Separated Values) is a simple format for storing tabular data in plain text. Each row is a data record, and columns are separated by commas (or other delimiters).

Technical Details

CSV files represent data in a flat table structure. The first row typically contains column headers, and each subsequent row contains values. Fields containing commas, newlines, or quotes may be enclosed in double quotes.

Advantages

• Simple format that's easy to create and parse
• Universal support across spreadsheet applications
• Efficient storage for tabular data
• Human-readable and editable in text editors

Limitations

• No support for nested data structures
• No standardized way to represent data types
• Special characters may require escaping
• No built-in support for formulas or calculations